ID | 66934 |
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Author |
Kajita, Soichiro
Department of Radiology, Okayama University Hospital
Iguchi, Toshihiro
Department of Radiology, Okayama University Hospital
Kaken ID
Matsui, Yusuke
Department of Radiology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
Tomita, Koji
Department of Radiology, Okayama University Hospital
Uka, Mayu
Department of Radiology, Okayama University Hospital
Umakoshi, Noriyuki
Department of Radiology, Okayama University Hospital
Kawabata, Takahiro
Department of Radiology, Okayama University Hospital
Munetomo, Kazuaki
Department of Radiology, Okayama University Hospital
Hiraki, Takao
Department of Radiology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
Kaken ID
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Abstract | Purpose To retrospectively assess the time course of complications after image-guided small renal mass biopsy using initial follow-up imaging.
Materials and methods A total of 190 masses (mean, 2.1 ± 0.70 cm; range, 0.6–3.8 cm) were assessed using initial computed tomography (43 non-enhanced and 141 enhanced) or magnetic resonance imaging (five non-enhanced and one enhanced) after biopsy. Initial follow-up imaging was classified into two groups (i.e., with or without hematoma) and various factors were compared. Results The masses were histologically diagnosed in all patients except one. Post-procedural complications included 129 Grade I hematomas, 1 Grade I hemothorax, 9 Grade II hematomas, and 1 Grade IIIa pneumothorax. Residual 28 Grade I and 6 Grade II hematomas and 8 new complications (6 small hematomas, 1 pseudoaneurysm, and 1 arteriovenous fistula) were observed on the initial follow-up imaging obtained at a median of 21 days (3–90 days) after the biopsy. On the initial follow-up imaging, the groups with and without hematoma differed significantly in the following factors: age (P = 0.04), size (P = 0.02), guided images (P < 0.01), hematoma at the end of the procedure (P < 0.01), and days after biopsy (P < 0.01). Although three masses exhibited > 25% shrinkage, no significant change was observed in mass diameter on initial follow-up imaging (mean, 2.1 ± 0.71 cm; P = 0.90). Conclusion Initial follow-up imaging after a biopsy revealed improvements in most of the complications, a few new complications, and an unchanged mass diameter. |
Keywords | Biopsy
Imaging
Complication
Renal neoplasms
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Note | The version of record of this article, first published in Japanese Journal of Radiology, is available online at Publisher’s website: http://dx.doi.org/10.1007/s11604-023-01509-9
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Published Date | 2023-11-22
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Publication Title |
Japanese Journal of Radiology
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Volume | volume42
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Issue | issue4
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Publisher | Springer Science and Business Media LLC
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Start Page | 398
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End Page | 405
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ISSN | 1867-1071
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NCID | AA12375935
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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Copyright Holders | © The Author(s) 2023
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File Version | publisher
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Related Url | isVersionOf https://doi.org/10.1007/s11604-023-01509-9
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License | http://creativecommons.org/licenses/by/4.0/
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Citation | Kajita, S., Iguchi, T., Matsui, Y. et al. Time course of complications after small renal mass biopsy: evaluation of initial follow-up images. Jpn J Radiol 42, 398–405 (2024). https://doi.org/10.1007/s11604-023-01509-9
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